International Development Research Center <br/><br/>
Searching : Fresh water the human imperative 

 - Ottawa  International Development Research Center  1989 
 - 40p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-88936-546-6 
<br/><br/><label>Dewey Class. No.: </label>551.48  / I D R C